diff --git a/README.md b/README.md
index f9c8c92..19dcceb 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,7 @@ A curated list of cyber security resources and tools.
 * [Vulnerability Notes Database](https://www.kb.cert.org/vuls/) - The Vulnerability Notes Database provides information about software vulnerabilities. Vulnerability notes include summaries, technical details, remediation information, and lists of affected vendors.
 
 * [Intelligence X](https://intelx.io/) - Intelligence X is a search engine and data archive. The company is based in Prague, Czech Republic. Its mission is to develop and maintain the search engine and data archive.
+* [Stellastra TLS Cipher Suite Database](https://stellastra.com/cipher-suite) - List of hundreds of TLS cipher suites alongside their security rating and vulnerability/deprecation status. 
 
 ## Security advice and guidance